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Questions and Answers
What does the periodic table arrange the chemical elements into?
What does the periodic table arrange the chemical elements into?
- Triangles and hexagons
- Lines and curves
- Rows and columns (correct)
- Circles and squares
According to the periodic law, what is evident when the elements are arranged in order of their atomic numbers?
According to the periodic law, what is evident when the elements are arranged in order of their atomic numbers?
- No change in their properties
- A random pattern of their properties
- A complete change in their properties
- An approximate recurrence of their properties (correct)
What is the trend for metallic character going down a group in the periodic table?
What is the trend for metallic character going down a group in the periodic table?
- Varies randomly
- Decreases
- Remains constant
- Increases (correct)
Who formulated the first generally accepted periodic table in 1869?
Who formulated the first generally accepted periodic table in 1869?
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What did Mendeleev successfully use the periodic law to predict?
What did Mendeleev successfully use the periodic law to predict?
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